Heh...I only wear it out of necessity. They are comfortable (Sennheiser HD590s) but not only does it suck when wearing glasses, it does get REAL warm in the ear covers (even though it covers the ear, doesnt' touch it) after about an hour.
Plus...way too many breakup modes on headphones drivers. My ears are always ringing after listening to them for a while.
aka: night time in an apartment, with flatmate next room, sharing wall with another apartment, or when on vacation and don't want to disturb my parents/friends. Also for testing for bad mp3s/movie files..the ones that go CRACKLECRACKLECRACKLE and kill your ears if your speakers are playing them.